function addToFavorite(){
    if(navigator.appName=="Netscape"){
		alert("Please press ^D (CTRL-D) to bookmark this page");
    }else if(parseInt(navigator.appVersion)>3){
	    var pagetitle = document.title.toString();
        if (pagetitle=="") {
           pagetitle = "Global Sources: The Largest Base of Suppliers";
        }
        var urlstr = document.location.toString();
        var patternQnMark = /\?/;
        var patternSlash = /\//;
        var patternGM = /GeneralManager/;
        urlstr = urlstr.replace(/http:\/\//,"");
        if (patternSlash.test(urlstr)) {
            if ((urlstr.substring(urlstr.length-4,urlstr.length)=="html") ||
                (urlstr.substring(urlstr.length-4,urlstr.length)==".com") ||
                (urlstr.substring(urlstr.length-1,urlstr.length)=="/"))
            {
                window.external.AddFavorite(document.location+"?ref=bmk",pagetitle)
            } else {
                window.external.AddFavorite(document.location+"&ref=bmk",pagetitle)
            }
        }  else if (patternQnMark.test(document.location) || patternGM.test(document.location)) {
            window.external.AddFavorite(document.location+"&ref=bmk",pagetitle)
        } else {
            window.external.AddFavorite(document.location+"?ref=bmk",pagetitle)
        }
    }
}